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2. Leather-hard - Wikipedia

   en.wikipedia.org/wiki/Leather-hard

   As with nearly all Chinese blue and white porcelain, this was painted when leather-hard, and probably the spout and rings were added. In pottery, leather-hard is the condition of a clay or clay body when it has been partially dried to a consistency similar to leather of the same thickness as the clay. At this stage, the clay object has ...

3. Underglaze - Wikipedia

   en.wikipedia.org/wiki/Underglaze

   Underglaze transfers are a technique that involves screenprinting or free handing a pattern onto a transfer paper (often rice paper or newspaper) which is then placed, dampened, and burnished onto the surface of a leather-hard piece of clay (similar to how a lick-and-stick tattoo might be applied). [21]

4. Slip (ceramics) - Wikipedia

   en.wikipedia.org/wiki/Slip_(ceramics)

   African red slip ware: moulded Mithras slaying the bull, 400 ± 50 AD.. A slip is a clay slurry used to produce pottery and other ceramic wares. [1] Liquified clay, in which there is no fixed ratio of water and clay, is called slip or clay slurry which is used either for joining leather-hard (semi-hardened) clay body (pieces of pottery) together by slipcasting with mould, glazing or decorating ...

5. Glossary of pottery terms - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_pottery_terms

   Leather-hard The condition of a clay or clay body when it has been partially dried to the point where all shrinkage has stopped. Loss of Ignition The percentage of mass lost when a material is heated under specified conditions: 1,000 °C is common for ceramic raw materials Lustre

6. Slipware - Wikipedia

   en.wikipedia.org/wiki/Slipware

   Slipware is pottery identified by its primary decorating process where slip is placed onto the leather-hard (semi-hardened) clay body surface before firing by dipping, painting or splashing. Slip is an aqueous suspension of a clay body, which is a mixture of clays and other minerals such as quartz, feldspar and mica.

7. Ceramic glaze - Wikipedia

   en.wikipedia.org/wiki/Ceramic_glaze

   Glazes need to include a ceramic flux which functions by promoting partial liquefaction in the clay bodies and the other glaze materials. Fluxes lower the high melting point of the glass forms silica, and sometimes boron trioxide. Raw materials for ceramic glazes generally include silica, which will be the main glass former.